爬虫作业

请分析作业页面，爬取已提交作业信息，并生成已提交作业名单，保存为英文逗号分隔的csv文件。文件名为：hwlist.csv 。

 

文件内容范例如下形式：

 

学号,姓名,作业标题,作业提交时间,作业URL

20194010101,张三,羊车门作业,2018-11-13 23:47:36.8,http://www.cnblogs.com/sninius/p/12345678.html

20194010102,李四,羊车门,2018-11-14 9:38:27.03,http://www.cnblogs.com/sninius/p/87654321.html

 

import requests
import json
url = 'https://edu.cnblogs.com/Homework/GetAnswers?homeworkId=2420&_=1542959851766'
try:
    r = requests.get(url)
    r.raise_for_status()
    r.encoding='utf-8'   
except:
    print("Error")
pa=''
Data = json.loads(r.text)['data']
for data in Data:
    pa= pa+str(data['StudentNo'])+','+data['RealName']+','+data['DateAdded'].replace('T',' ')+','+data['Title']+','+data['Url']+'\n'
with open('e.csv','w') as f:
    f.write(pa)